package org.aphelie.torg.ruler.internal.ui.editor.character.text;

import org.eclipse.jface.text.rules.ICharacterScanner;
import org.eclipse.jface.text.rules.IToken;
import org.eclipse.jface.text.rules.MultiLineRule;

public class XMLTagRule extends MultiLineRule {

	public XMLTagRule(IToken token) {
		super("<", ">", token); //$NON-NLS-1$ //$NON-NLS-2$
	}

	protected boolean sequenceDetected(ICharacterScanner scanner,
			char[] sequence, boolean eofAllowed) {
		int c = scanner.read();
		if (sequence[0] == '<') {
			if (c == '?') {
				// processing instruction - abort
				scanner.unread();
				return false;
			}
			if (c == '!') {
				scanner.unread();
				// comment - abort
				return false;
			}
		} else if (sequence[0] == '>') {
			scanner.unread();
		}

		return super.sequenceDetected(scanner, sequence, eofAllowed);
	}

}
